I'm using Super Duper for the first time to create a read-only image of my mac HDD to my NAS. It ran for about 4 hours then I forgot about it and closed my laptop. I opened it backup and it seemingly resumed, so I check my NAS and I see a laptop_backup.dmg.sparseimage (115.73GB) and another laptop_backup.dmg (68.29GB+) file that's increasing in size as it continues running. Now I know it was in the process of step 3: converting to read-only when I closed the laptop. Should I be worried I corrupted it? It's still going.. Maybe because I had it plugged in it only "powernapped" and still continued?